Appeal No. 1998-0601
Application 08/225,322
This is a decision on appeal under 35 U.S.C. § 134 from
the final rejection of claims 1, 2, 4-6, 11, 12, and 15.
Claims 3, 7-10, 13, 14, and 16-19 stand withdrawn by the
Examiner as being directed to a nonelected species.
We affirm-in-part.
BACKGROUND
The disclosed invention is directed to a driving method
and apparatus for an optical read/write drive.
Claim 1 is reproduced below.
1. In an optical read/write device of the type
having a light source element in an optical pickup for
reading and writing data from and to an optical disk, a
driving method for said light source element comprising
the steps of:
determining whether an abnormal tracking error
occurs based on a tracking error signal generated in
accordance with the movement of the optical pickup; and
supplying the light source element with a drive
signal having a level suitable for a data read operation,
independent of the driving mode of the optical pickup,
thereby operating the optical pickup at a power level
suitable for reading data, when an abnormal tracking
error occurs.
The Examiner relies on the admitted prior art (APA) at
pages 1-3 of the specification and figure 1, and on the
following prior art:
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